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HTML
- WBOYOriginal
- 2016-09-14 09:24:021859browse
Definition and Usage
TheNormally, the browser will fill in the gaps in the relative URL by extracting the corresponding elements from the URL of the current document.
Use the , ,
Optional attributes
| Property | Value | Description |
|---|---|---|
| target |
|
Where to open all the links on the page. |
Case:
<html> <head> <<span style="color: #0000ff;">base</span> href=<span style="color: #800000;">"</span><span style="color: #800000;">http://www.w3school.com.cn/i/</span><span style="color: #800000;">"</span> /> <<span style="color: #0000ff;">base</span> target=<span style="color: #800000;">"</span><span style="color: #800000;">_blank</span><span style="color: #800000;">"</span> /> </head> <body> <img src=<span style="color: #800000;">"</span><span style="color: #800000;">eg_smile.gif</span><span style="color: #800000;">"</span> /><br /> <p>请注意，我们已经为图像规定了一个相对地址。由于我们已经在 head 部分规定了一个基准 URL，浏览器将在如下地址寻找图片：</p> <p><span style="color: #800000;">"</span><span style="color: #800000;">http://www.w3school.com.cn/i/eg_smile.gif</span><span style="color: #800000;">"</span></p> <br /><br /> <p><a href=<span style="color: #800000;">"</span><span style="color: #800000;">http://www.w3school.com.cn</span><span style="color: #800000;">"</span>>W3School</a></p> <p>请注意，链接会在新窗口中打开，即使链接中没有 target=<span style="color: #800000;">"</span><span style="color: #800000;">_blank</span><span style="color: #800000;">"</span> 属性。这是因为 <span style="color: #0000ff;">base</span> 元素的 target 属性已经被设置为 <span style="color: #800000;">"</span><span style="color: #800000;">_blank</span><span style="color: #800000;">"</span> 了。</p> </body> </html>
<!DOCTYPE html> <html> <head> <meta http-equiv=<span style="color: #800000;">"</span><span style="color: #800000;">Content-Type</span><span style="color: #800000;">"</span> content=<span style="color: #800000;">"</span><span style="color: #800000;">text/html; charset=gb2312</span><span style="color: #800000;">"</span> /> <meta http-equiv=<span style="color: #800000;">"</span><span style="color: #800000;">Content-Language</span><span style="color: #800000;">"</span> content=<span style="color: #800000;">"</span><span style="color: #800000;">zh-cn</span><span style="color: #800000;">"</span> /> <<span style="color: #0000ff;">base</span> target=<span style="color: #800000;">"</span><span style="color: #800000;">_blank</span><span style="color: #800000;">"</span> /> </head> <body> <p> <a href=<span style="color: #800000;">"</span><span style="color: #800000;">http://www.w3school.com.cn</span><span style="color: #800000;">"</span> target=<span style="color: #800000;">"</span><span style="color: #800000;">_blank</span><span style="color: #800000;">"</span>>这个连接</a> 将在新窗口中加载，因为 target 属性被设置为 <span style="color: #800000;">"</span><span style="color: #800000;">_blank</span><span style="color: #800000;">"</span><span style="color: #000000;">。 </span></p> <p> <a href=<span style="color: #800000;">"</span><span style="color: #800000;">http://www.w3school.com.cn</span><span style="color: #800000;">"</span>>这个连接</a><span style="color: #000000;"> 也将在新窗口中加载，即使没有 target 属性。 </span></p> </body> </html>
Base object
The Base object represents the base element of HTML.
Every time
Base object properties
| Property | Description |
|---|---|
| href | Set or return the base URL for all links in the page. |
| id | Sets or returns the id of the |
| target | Set or return the default target frame for all links in the page. |
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